Borucki (finger) was activated off the injured list Saturday, Mitch Bannon of SI.com reports.
Borucki had been out since late April with a blister. He made just two appearances prior to suffering the injury, throwing 1.1 scoreless innings. His return gives the Blue Jays another fresh arm for the second half of their doubleheader against the Guardians, with Julian Merryweather, who tossed two innings in the afternoon game, heading to the minors to clear a roster spot.